I've been experimenting with new strings over the last year or so. This after a period of many years where I was just buying the same thing over and over because it was familiar and easily available. I am certainly a fan of bright sounding rounds. Lasting a while is a major plus. I've experimented with most of the standard nickle plated sets, some better than others. I've tried many of the widely available stainless sets, most of which were great for lasting, but a little too hard edged in the the upper register for my taste. I've really fell into liking standard Boomers on my P-bass - they seem to fit the character of it nicely. And for me they last. But my J-bass was a bit different. NYXL's worked pretty well for me on the P-bass, so I gave them a go on the J. Pretty good, but I wanted to keep experimenting and I wanted something that would make the E talk a bit more like the other strings. Something with a bit more fundamental drive to them as well. After looking around, Progressives seemed like a good bet. Apparently brighter than the Boomers, something I wanted for the J. And also taper wound on the E, potentially waking up the E a bit? But these things aren't easy to find. Perhaps impossible locally for me. Even online is a bit sparse. Thankfully Fretnation has a huge selection. And I am glad I did! My initial reaction was that of concern, as they didn't sound all that alive when winding them up. However, through the amp is a different story. Bright, but not harsh. Powerful, in a way I could describe as like a sibling to Boomers. Great output. And maybe it's just a placebo, but it certainly seems like the taper on the E help. The E sounds especially good to my ears compared to other sets E, which more often than not is a bit less lively. Plus they have been on the bass for a while and still sound great, if not better. So - who out there are playing these things? Why don't they seem more popular? I know they have been around for a while, perhaps I am just slow to find what I like?